Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 22, Issue 3, Pages 608-612Publisher
ELSEVIER
DOI: 10.1016/S1003-6326(11)61221-1
Keywords
Ti35Nb2.5Sn/10HA; ultrafine grain; powder metallurgy; milling time
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Funding
- Natural Science Foundation of Heilongjiang Province, China [ZJY0605-02]
- National Research Foundation of Korea (NRF) [310703002]
- Korea Government
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A new beta-Ti based Ti35Nb2.5Sn/10 hydroxyapitite (HA) biocompatible composite was fabricated by mechanical milling and pulsed current activated sintering(PCAS). The microstructures of Ti35Nb2.5Sn/10HA powder particles and composites sintered from the milled powders were studied. Results indicated that alpha-Ti phase began to transform into beta-Ti phase after the powders were mechanically milled for 8 h. After mechanical milling for 12 h, alpha-Ti completely transformed into beta-Ti phase, and the ultra fine Ti35Nb2.5Sn/10HA composite powders were obtained. And ultra fine grain sized Ti35Nb2.5Sn/10HA sintered composites were obtained by PCAS. The hardness and relative density of the sintered composites both increased with increasing the ball milling time.
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